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Proceedings Paper

Direct Phase Measurement In Spherical Wave Fizeau Interferometers
Author(s): Robert C. Moore; Frank H. Slaymaker
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Paper Abstract

For generations optical technicians have judged the accuracy of an optical surface by estimating the straightness of the fringes in an interference pattern. The eye, however, is not capable of estimating fringe straightness accurately enough to satisfy present-day demands for twentieth-wave or hundredth-wave accuracy. More rigorous quantitative methods must be used to attain the desired precision. Digital analysis of photographs is a help but the data obtained from photographs are noisy and such a method is greatly influenced by distortion in the imaging system and the problems associated with the necessity of providing many closely spaced fringes for analysis.

Paper Details

Date Published: 28 May 1980
PDF: 7 pages
Proc. SPIE 0220, Optics in Metrology and Quality Assurance, (28 May 1980); doi: 10.1117/12.958582
Show Author Affiliations
Robert C. Moore, Tropel, Inc. (United States)
Frank H. Slaymaker, Tropel, Inc. (United States)


Published in SPIE Proceedings Vol. 0220:
Optics in Metrology and Quality Assurance
Harvey L. Kasdan, Editor(s)

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